Abstract: The aim of this paper is to study the blow up behaviour of a
radially symmetric solution $u$ of the nonlinear parabolic equation (\ref{1}),
around a blow up point other than its centre of symmetry.
We assume that $\Omega$ is a ball in $R^N$ or $\Omega=R^N$,
and $p>1$. We show that $u$ behaves as if a one-dimensional problem was concerned:
the possible blow up profiles around an unfocused blow up point
are the ones corresponding to the case of dimension $N=1$.
Finally, we extend these results to equations
with more general domains and nonlinear terms.